package com.lemon.smartsafety.utils.common;

import android.text.TextUtils;
import android.util.Log;

import java.text.DateFormat;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;
import java.util.GregorianCalendar;
import java.util.TimeZone;

public class DateUtils {

    public final static String YYMMDD            = "YY-MM-DD";
    public final static String YYMMDD_CHS        = "YY年MM月DD日";
    public final static String HHMISS            = "HH24:MI:SS";
    public final static String HHMISS_CHS        = "HH24点MI分SS秒";
    public final static String YYMMDD_HHMISS     = "YY-MM-DD HH24:MI:SS";
    public final static String YYMMDD_HHMISS_CHS = "YY年MM月DD日HH24点MI分SS秒";
    /**
     * 时间日期格式化到年月日时分秒.
     */
    public static       String dateFormatYMDHMS  = "yyyy-MM-dd HH:mm:ss";

    /**
     * 时间日期格式化到年月日.
     */
    public static String dateFormatYMD  = "yyyy-MM-dd";
    public static String dateFormatYMD2 = "yyyy/MM/dd";

    /**
     * 时间日期格式化到年月.
     */
    public static String dateFormatYM = "yyyy-MM";

    /**
     * 时间日期格式化到年月日时分.
     */
    public static String dateFormatYMDHM = "yyyy-MM-dd HH:mm";

    /**
     * 时间日期格式化到月日.
     */
    public static String dateFormatMD = "MM/dd";

    /**
     * 时分秒.
     */
    public static String dateFormatHMS = "HH:mm:ss";

    /**
     * 时分.
     */
    public static String dateFormatHM = "HH:mm";


    /**
     * 获取当前时间的指定格式(默认格式yyyy-MM-dd HH:mm:ss)字符串
     *
     * @param date
     * @return
     */
    public static String getCurrentDate(Date date) {
        return getCurrentDate(date, dateFormatYMDHMS);
    }

    /**
     * 获取当前年份
     *
     * @return 返回当前年份整数
     */
    public static int getCurrentYear() {
        Calendar a = Calendar.getInstance();
        return a.get(Calendar.YEAR);
    }
    /**
     * 获取当前月份
     *
     * @return 返回当前月份整数
     */
    public static int getCurrentMonth() {
        Calendar a = Calendar.getInstance();
        return a.get(Calendar.MONTH);
    }


    /**
     * 获取当前时间的指定格式字符串
     *
     * @param date
     * @param format
     * @return
     */
    public static String getCurrentDate(Date date, String format) {
        SimpleDateFormat mSimpleDateFormat = new SimpleDateFormat(format);
        mSimpleDateFormat.setTimeZone(TimeZone.getTimeZone("GMT+08"));
        return mSimpleDateFormat.format(date);
    }

    /**
     * 将日期字符串转换成特定的格式
     *
     * @param dateString
     * @param format
     * @return
     */
    public static String getFormatDateStringWithDateString(String dateString, String format) {
        if (null == dateString || dateString.trim().length() == 0) {
            return "";
        }
        Date date = getDateByFormat(dateString, format);
        return getCurrentDate(date, format);
    }

    /**
     * 描述：String类型的日期时间转化为Date类型.
     *
     * @param strDate String形式的日期时间
     * @param format  格式化字符串，如："yyyy-MM-dd HH:mm:ss"
     * @return Date Date类型日期时间
     */
    public static Date getDateByFormat(String strDate, String format) {
        SimpleDateFormat mSimpleDateFormat = new SimpleDateFormat(format);
        Date             date              = null;
        try {
            date = mSimpleDateFormat.parse(strDate);
        } catch (ParseException e) {
            e.printStackTrace();
        }
        return date;
    }

    /**
     * 描述：获取偏移之后的Date.
     *
     * @param date          日期时间
     * @param calendarField Calendar属性，对应offset的值， 如(Calendar.DATE,表示+offset天,Calendar.HOUR_OF_DAY,表示＋offset小时)
     * @param offset        偏移(值大于0,表示+,值小于0,表示－)
     * @return Date 偏移之后的日期时间
     */
    public Date getDateByOffset(Date date, int calendarField, int offset) {
        Calendar c = new GregorianCalendar();
        try {
            c.setTime(date);
            c.add(calendarField, offset);
        } catch (Exception e) {
            e.printStackTrace();
        }
        return c.getTime();
    }

    /**
     * 描述：获取指定日期时间的字符串(可偏移).
     *
     * @param strDate       String形式的日期时间
     * @param format        格式化字符串，如："yyyy-MM-dd HH:mm:ss"
     * @param calendarField Calendar属性，对应offset的值， 如(Calendar.DATE,表示+offset天,Calendar.HOUR_OF_DAY,表示＋offset小时)
     * @param offset        偏移(值大于0,表示+,值小于0,表示－)
     * @return String String类型的日期时间
     */
    public static String getStringByOffset(String strDate, String format, int calendarField, int offset) {
        String mDateTime = null;
        try {
            Calendar         c                 = new GregorianCalendar();
            SimpleDateFormat mSimpleDateFormat = new SimpleDateFormat(format);
            c.setTime(mSimpleDateFormat.parse(strDate));
            c.add(calendarField, offset);
            mDateTime = mSimpleDateFormat.format(c.getTime());
        } catch (ParseException e) {
            e.printStackTrace();
        }
        return mDateTime;
    }

    /**
     * 描述：Date类型转化为String类型(可偏移).
     *
     * @param date          the date
     * @param format        the format
     * @param calendarField the calendar field
     * @param offset        the offset
     * @return String String类型日期时间
     */
    public static String getStringByOffset(Date date, String format, int calendarField, int offset) {
        String strDate = null;
        try {
            Calendar         c                 = new GregorianCalendar();
            SimpleDateFormat mSimpleDateFormat = new SimpleDateFormat(format);
            c.setTime(date);
            c.add(calendarField, offset);
            strDate = mSimpleDateFormat.format(c.getTime());
        } catch (Exception e) {
            e.printStackTrace();
        }
        return strDate;
    }


    /**
     * 描述：Date类型转化为String类型.
     *
     * @param date   the date
     * @param format the format
     * @return String String类型日期时间
     */
    public static String getStringByFormat(Date date, String format) {
        SimpleDateFormat mSimpleDateFormat = new SimpleDateFormat(format);
        String           strDate           = null;
        try {
            strDate = mSimpleDateFormat.format(date);
        } catch (Exception e) {
            e.printStackTrace();
        }
        return strDate;
    }

    /**
     * 描述：获取指定日期时间的字符串,用于导出想要的格式.
     *
     * @param strDate String形式的日期时间，必须为yyyy-MM-dd HH:mm:ss格式
     * @param format  输出格式化字符串，如："yyyy-MM-dd HH:mm:ss"
     * @return String 转换后的String类型的日期时间
     */
    public static String getStringByFormat(String strDate, String format) {
        String mDateTime = null;
        try {
            Calendar         c                 = new GregorianCalendar();
            SimpleDateFormat mSimpleDateFormat = new SimpleDateFormat(dateFormatYMDHMS);
            c.setTime(mSimpleDateFormat.parse(strDate));
            SimpleDateFormat mSimpleDateFormat2 = new SimpleDateFormat(format);
            mDateTime = mSimpleDateFormat2.format(c.getTime());
        } catch (Exception e) {
            e.printStackTrace();
        }
        return mDateTime;
    }


    /**
     * 描述：获取milliseconds表示的日期时间的字符串.
     *
     * @param format 格式化字符串，如："yyyy-MM-dd HH:mm:ss"
     * @return String 日期时间字符串
     */
    public static String getStringByFormat(long milliseconds, String format) {
        String thisDateTime = null;
        try {
            SimpleDateFormat mSimpleDateFormat = new SimpleDateFormat(format);
            thisDateTime = mSimpleDateFormat.format(milliseconds);
        } catch (Exception e) {
            e.printStackTrace();
        }
        return thisDateTime;
    }

    /**
     * 获取当前日期（格式"yyyy-MM-dd HH:mm:ss"）
     *
     * @return
     */
    public static String getCurrentYMDHMSDate() {
        return DateUtils.getCurrentDate(DateUtils.dateFormatYMDHMS);
    }

    /**
     * 获取当前日期（格式"yyyy-MM-dd"）
     *
     * @return
     */
    public static String getCurrentYMDDate() {
        return DateUtils.getCurrentDate(DateUtils.dateFormatYMD);
    }

    /**
     * 描述：获取表示当前日期时间的字符串.
     *
     * @param format 格式化字符串，如："yyyy-MM-dd HH:mm:ss"
     * @return String String类型的当前日期时间
     */
    public static String getCurrentDate(String format) {
        String curDateTime = null;
        try {
            SimpleDateFormat mSimpleDateFormat = new SimpleDateFormat(format);
            Calendar         c                 = new GregorianCalendar();
            Log.v("THE　TIME IS：",c.getTime().toString());
            curDateTime = mSimpleDateFormat.format(c.getTime());
        } catch (Exception e) {
            e.printStackTrace();
        }
        return curDateTime;

    }


    /**
     * 描述：获取表示当前日期时间的字符串(可偏移).
     *
     * @param format        格式化字符串，如："yyyy-MM-dd HH:mm:ss"
     * @param calendarField Calendar属性，对应offset的值， 如(Calendar.DATE,表示+offset天,Calendar.HOUR_OF_DAY,表示＋offset小时)
     * @param offset        偏移(值大于0,表示+,值小于0,表示－)
     * @return String String类型的日期时间
     */
    public static String getCurrentDateByOffset(String format, int calendarField, int offset) {
        String mDateTime = null;
        try {
            SimpleDateFormat mSimpleDateFormat = new SimpleDateFormat(format);
            Calendar         c                 = new GregorianCalendar();
            c.add(calendarField, offset);
            mDateTime = mSimpleDateFormat.format(c.getTime());
        } catch (Exception e) {
            e.printStackTrace();
        }
        return mDateTime;

    }

    /**
     * 描述：计算两个日期所差的天数.
     *
     * @param date1 第一个时间的毫秒表示
     * @param date2 第二个时间的毫秒表示
     * @return int 所差的天数
     */
    public static int getOffectDay(long date1, long date2) {
        Calendar calendar1 = Calendar.getInstance();
        calendar1.setTimeInMillis(date1);
        Calendar calendar2 = Calendar.getInstance();
        calendar2.setTimeInMillis(date2);
        //先判断是否同年
        int y1      = calendar1.get(Calendar.YEAR);
        int y2      = calendar2.get(Calendar.YEAR);
        int d1      = calendar1.get(Calendar.DAY_OF_YEAR);
        int d2      = calendar2.get(Calendar.DAY_OF_YEAR);
        int maxDays = 0;
        int day     = 0;
        if (y1 - y2 > 0) {
            maxDays = calendar2.getActualMaximum(Calendar.DAY_OF_YEAR);
            day = d1 - d2 + maxDays;
        } else if (y1 - y2 < 0) {
            maxDays = calendar1.getActualMaximum(Calendar.DAY_OF_YEAR);
            day = d1 - d2 - maxDays;
        } else {
            day = d1 - d2;
        }
        return day;
    }

    /**
     * 描述：计算两个日期所差的小时数.
     *
     * @param date1 第一个时间的毫秒表示
     * @param date2 第二个时间的毫秒表示
     * @return int 所差的小时数
     */
    public static int getOffectHour(long date1, long date2) {
        Calendar calendar1 = Calendar.getInstance();
        calendar1.setTimeInMillis(date1);
        Calendar calendar2 = Calendar.getInstance();
        calendar2.setTimeInMillis(date2);
        int h1  = calendar1.get(Calendar.HOUR_OF_DAY);
        int h2  = calendar2.get(Calendar.HOUR_OF_DAY);
        int h   = 0;
        int day = getOffectDay(date1, date2);
        h = h1 - h2 + day * 24;
        return h;
    }

    /**
     * 描述：计算两个日期所差的分钟数.
     *
     * @param date1 第一个时间的毫秒表示
     * @param date2 第二个时间的毫秒表示
     * @return int 所差的分钟数
     */
    public static int getOffectMinutes(long date1, long date2) {
        Calendar calendar1 = Calendar.getInstance();
        calendar1.setTimeInMillis(date1);
        Calendar calendar2 = Calendar.getInstance();
        calendar2.setTimeInMillis(date2);
        int m1 = calendar1.get(Calendar.MINUTE);
        int m2 = calendar2.get(Calendar.MINUTE);
        int h  = getOffectHour(date1, date2);
        int m  = 0;
        m = m1 - m2 + h * 60;
        return m;
    }

    /**
     * 描述：获取本周一.
     *
     * @param format the format
     * @return String String类型日期时间
     */
    public static String getFirstDayOfWeek(String format) {
        return getDayOfWeek(format, Calendar.MONDAY);
    }

    /**
     * 描述：获取本周日.
     *
     * @param format the format
     * @return String String类型日期时间
     */
    public static String getLastDayOfWeek(String format) {
        return getDayOfWeek(format, Calendar.SUNDAY);
    }

    /**
     * 描述：获取本周的某一天.
     *
     * @param format        the format
     * @param calendarField the calendar field
     * @return String String类型日期时间
     */
    private static String getDayOfWeek(String format, int calendarField) {
        String strDate = null;
        try {
            Calendar         c                 = new GregorianCalendar();
            SimpleDateFormat mSimpleDateFormat = new SimpleDateFormat(format);
            int              week              = c.get(Calendar.DAY_OF_WEEK);
            if (week == calendarField) {
                strDate = mSimpleDateFormat.format(c.getTime());
            } else {
                int offectDay = calendarField - week;
                if (calendarField == Calendar.SUNDAY) {
                    offectDay = 7 - Math.abs(offectDay);
                }
                c.add(Calendar.DATE, offectDay);
                strDate = mSimpleDateFormat.format(c.getTime());
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
        return strDate;
    }

    /**
     * 描述：获取本月第一天.
     *
     * @param format the format
     * @return String String类型日期时间
     */
    public static String getFirstDayOfMonth(String format) {
        String strDate = null;
        try {
            Calendar         c                 = new GregorianCalendar();
            SimpleDateFormat mSimpleDateFormat = new SimpleDateFormat(format);
            //当前月的第一天
            c.set(GregorianCalendar.DAY_OF_MONTH, 1);
            strDate = mSimpleDateFormat.format(c.getTime());
        } catch (Exception e) {
            e.printStackTrace();
        }
        return strDate;

    }

    /**
     * 描述：获取本月最后一天.
     *
     * @param format the format
     * @return String String类型日期时间
     */
    public static String getLastDayOfMonth(String format) {
        String strDate = null;
        try {
            Calendar         c                 = new GregorianCalendar();
            SimpleDateFormat mSimpleDateFormat = new SimpleDateFormat(format);
            // 当前月的最后一天
            c.set(Calendar.DATE, 1);
            c.roll(Calendar.DATE, -1);
            strDate = mSimpleDateFormat.format(c.getTime());
        } catch (Exception e) {
            e.printStackTrace();
        }
        return strDate;
    }


    /**
     * 描述：获取表示当前日期的0点时间毫秒数.
     *
     * @return the first time of day
     */
    public static long getFirstTimeOfDay() {
        Date date = null;
        try {
            String currentDate = getCurrentDate(dateFormatYMD);
            date = getDateByFormat(currentDate + " 00:00:00", dateFormatYMDHMS);
            return date.getTime();
        } catch (Exception e) {
        }
        return -1;
    }

    /**
     * 描述：获取表示当前日期24点时间毫秒数.
     *
     * @return the last time of day
     */
    public static long getLastTimeOfDay() {
        Date date = null;
        try {
            String currentDate = getCurrentDate(dateFormatYMD);
            date = getDateByFormat(currentDate + " 24:00:00", dateFormatYMDHMS);
            return date.getTime();
        } catch (Exception e) {
        }
        return -1;
    }

    /**
     * 描述：判断是否是闰年()
     * <p>(year能被4整除 并且 不能被100整除) 或者 year能被400整除,则该年为闰年.
     *
     * @param year 年代（如2012）
     * @return boolean 是否为闰年
     */
    public static boolean isLeapYear(int year) {
        if ((year % 4 == 0 && year % 400 != 0) || year % 400 == 0) {
            return true;
        } else {
            return false;
        }
    }

    /**
     * 描述：根据时间返回几天前或几分钟的描述.
     *
     * @param strDate the str date
     * @return the string
     */
    public static String formatDateStr2Desc(String strDate, String outFormat) {

        DateFormat df = new SimpleDateFormat(dateFormatYMDHMS);
        Calendar   c1 = Calendar.getInstance();
        Calendar   c2 = Calendar.getInstance();
        try {
            c2.setTime(df.parse(strDate));
            c1.setTime(new Date());
            int d = getOffectDay(c1.getTimeInMillis(), c2.getTimeInMillis());
            if (d == 0) {
                int h = getOffectHour(c1.getTimeInMillis(), c2.getTimeInMillis());
                if (h > 0) {
                    return h + "小时前";
                } else if (h < 0) {
                    return Math.abs(h) + "小时后";
                } else if (h == 0) {
                    int m = getOffectMinutes(c1.getTimeInMillis(), c2.getTimeInMillis());
                    if (m > 0) {
                        return m + "分钟前";
                    } else if (m < 0) {
                        return Math.abs(m) + "分钟后";
                    } else {
                        return "刚刚";
                    }
                }
            } else if (d > 0) {
                if (d == 1) {
                    return "昨天";
                } else if (d == 2) {
                    return "前天";
                }
            } else if (d < 0) {
                if (d == -1) {
                    return "明天";
                } else if (d == -2) {
                    return "后天";
                }
                return Math.abs(d) + "天后";
            }

            String out = getStringByFormat(strDate, outFormat);
            if (!TextUtils.isEmpty(out)) {
                return out;
            }
        } catch (Exception e) {
        }

        return strDate;
    }


    /**
     * 取指定日期为星期几
     *
     * @param strDate  指定日期
     * @param inFormat 指定日期格式
     * @return String   星期几
     */
    public static String getWeekNumber(String strDate, String inFormat) {
        String     week     = "星期日";
        Calendar   calendar = new GregorianCalendar();
        DateFormat df       = new SimpleDateFormat(inFormat);
        try {
            calendar.setTime(df.parse(strDate));
        } catch (Exception e) {
            return "错误";
        }
        int intTemp = calendar.get(Calendar.DAY_OF_WEEK) - 1;
        switch (intTemp) {
            case 0:
                week = "星期日";
                break;
            case 1:
                week = "星期一";
                break;
            case 2:
                week = "星期二";
                break;
            case 3:
                week = "星期三";
                break;
            case 4:
                week = "星期四";
                break;
            case 5:
                week = "星期五";
                break;
            case 6:
                week = "星期六";
                break;
        }
        return week;
    }

    /**
     * 从日期字符串里获取年份
     *
     * @param sDate 日期字符串
     * @return
     */
    public static String getYear(String sDate) {
        if (StringUtils.nullValue(sDate).length() == 0) {
            return "";
        }
        int pos1 = sDate.indexOf('-');
        if (pos1 == -1) {
            return "";
        }
        return sDate.substring(0, pos1);
    }

    /**
     * 从日期字符串里获取月份
     *
     * @param sDate 日期字符串
     * @return
     */
    public static String getMonth(String sDate) {
        int pos1 = sDate.indexOf('-');
        if (pos1 == -1) {
            return "";
        }
        int pos2 = sDate.indexOf('-', pos1 + 1);
        if (pos2 == -1) {
            return "";
        }
        int nMonth = Convertor.toInt(sDate.substring(pos1 + 1, pos2), 0);
        if (nMonth < 1 || nMonth > 12) {
            return "";
        }
        return "" + nMonth;
    }

    /**
     * 从日期字符串里获取日期
     *
     * @param sDate 日期字符串
     * @return
     */
    public static String getDate(String sDate) {
        int pos1 = sDate.indexOf('-');
        if (pos1 == -1) {
            return "";
        }
        pos1 = sDate.indexOf('-', pos1 + 1);
        if (pos1 == -1) {
            return "";
        }
        int pos2 = sDate.indexOf(' ', pos1);
        if (pos2 == -1) {
            pos2 = sDate.length();
        }
        int nDate = Convertor.toInt(sDate.substring(pos1 + 1, pos2), 0);
        if (nDate < 1 || nDate > 31) {
            return "";
        }
        return "" + nDate;
    }

    /**
     * 从日期字符串里获取小时
     *
     * @param sDate 日期字符串
     * @return
     */
    public static String getHour(String sDate) {
        int pos1 = sDate.indexOf(' ');
        if (pos1 == -1) {
            return "0";
        }
        int pos2 = sDate.indexOf(':', pos1 + 1);
        if (pos2 == -1) {
            return "0";
        }
        int nHour = Convertor.toInt(sDate.substring(pos1 + 1, pos2), -1);
        if (nHour < 0 || nHour > 59) {
            return "";
        }
        return "" + nHour;
    }

    /**
     * 获取日期字符串里的分钟
     *
     * @param sDate 日期字符串
     * @return
     */
    public static String getMinute(String sDate) {
        sDate = sDate.trim();
        int pos1 = sDate.indexOf(" ");
        if (pos1 == -1) {
            return "0";
        } else {
            pos1 = sDate.indexOf(":", pos1);
            if (pos1 == -1) {
                return "0";
            }
            int pos2 = sDate.indexOf(":", pos1 + 1);
            if (pos2 == -1) {
                pos2 = sDate.length();
            }
            return sDate.substring(pos1 + 1, pos2);
        }
    }

    /**
     * 获取日期字符串里的秒
     *
     * @param sDate 日期字符串
     * @return
     */
    public static String getSecond(String sDate) {
        sDate = sDate.trim();
        int pos1 = sDate.indexOf(" ");
        if (pos1 == -1) {
            return "0";
        } else {
            pos1 = sDate.indexOf(":", pos1);
            if (pos1 == -1) {
                return "0";
            }
            pos1 = sDate.indexOf(":", pos1 + 1);
            if (pos1 == -1) {
                return "0";
            }
            int pos2 = sDate.indexOf(".", pos1 + 1);
            if (pos2 == -1) {
                pos2 = sDate.length();
            }

            return sDate.substring(pos1 + 1, pos2);
        }
    }

    /**
     * The main method.
     *
     * @param args the arguments
     */
    public static void main(String[] args) {
        System.out.println(formatDateStr2Desc("2012-3-2 12:2:20", "MM月dd日  HH:mm"));
    }
}
